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The System Trunk Interface Extender module (STIX) module is a T1/E1 interface card that supports one T1/E1 port.  

STIX-1T1E1/DSP Faceplate Connector Locations

T1/E1 Connector

RJ-48 Connector

T1/E1 Connector Pinouts

Pin Number


Pin 1

Receive Ring

Pin 2

Receive Tip

Pin 3

no connection

Pin 4

Transmit Ring

Pin 5

Transmit Tip

Pin 6

no connection

Pin 7

no connection

Pin 8

no connection

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